| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 66 |
0.9%
|
| 2 | 12 years old | 260 |
3.4%
|
| 3 | 13 years old | 716 |
9.5%
|
| 4 | 14 years old | 1068 |
14.1%
|
| 5 | 15 years old | 1243 |
16.5%
|
| 6 | 16 years old | 1438 |
19%
|
| 7 | 17 years old | 1344 |
17.8%
|
| 8 | 18 years old or older | 1417 |
18.8%
|
| Sysmiss | 24 |